The Busy Woman's Bikini Body Workout

With summer just weeks away, it's time to turn our attention to those parts of our bodies that haven't seen sunlight since—well, last summer. All of these compound moves tone multiple body parts at once—your glutes, thighs, arms, and more—so you can get through a full-body workout in a hurry.

The Curtsy (Works Biceps and Thighs)

Astrid Swan McGuire, an instructor at Barry's Bootcamp, recommends a "compound move—it uses more muscles to get more done in less time," she says. The Curtsy works your core muscles while also giving your triceps, outer thighs, inner thighs, and butt great definition.

How to: Start standing with legs together. Take a big step behind you—as if you were doing a curtsy for the royal family—keeping your chest upright. As you bend, open your arms to the side and curl up to 80 degrees with dumbbells. Repeat on other side. (Beginners: Aim for 10 to 12 reps each side; advanced, 24 to 40.)

One-Leg Dead Lift (Works Butt and Triceps)

McGuire loves this other compound move, which focuses on the back of your legs, butt, and triceps. "A nice bonus is that it's a great core stabilizer," she says.

How to: Stand with your feet hip-width apart, weights by your side. Lift one leg behind you (keep it straight) and lean forward to counter-balance, keeping your back straight. When you get to a 90-degree angle, lift your elbows up and kick your lower arms back for a tricep extension. Hold the position as you complete 8 to 10 reps, then switch legs. (Advanced? Do 20 to 25 reps on each side.)

Cross-Back Extension (Works Butt and Thighs)

How to: Stand holding a barre (or a countertop or chair—"whatever works," Rhodes says) and bend your left leg into a squat (keep your left knee directly over your foot). Keeping your hips square to the front, cross your right leg behind the left as far as you can, keeping it straight, then bring it back directly behind you, leaning into the barre for balance. Complete three to five reps without placing your foot on the ground, then reverse legs and try the other side.

Jump Squats (Cardio and Toning)

Liz Dix, trainer at Exceed Physical Culture, is a big fan of this move because "it's like one-stop shopping" for cardio and toning (and who doesn't want that?).

How to: Stand with your feet a little wider than hip-width apart. Keeping your back straight (not arched), lower into a deep squat, keeping your knees in line with your toes. Power up through your legs and jump before you land softly and lower back down into a deep squat.

Airplanes (Works Butt and Back)

Nichelle Hines, an instructor at Cycle House, says that this move wreaks havoc (in a good, bring-on-the-swimsuit kind of way!) on your glutes and butt.

How to: Lie face-down on the floor, legs straight. Extend your arms and lift them above your head, keeping your head and neck in a neutral position, and lift your legs off the ground at the same time. Hold for 20 seconds, then release. Repeat for 20 reps.

One Leg Bridges (Works Butt and Legs)

Hines loves this move—she calls it her "two-for-one"—because it really works your thigh muscles while also giving the rest of your leg muscles a good workout.

How to: Lie on your back with your hands at your side, feet flat on the floor. Lift your hips up into a bridge position and lower them again. Bring them back up, hold at the top, and pulse for a count of 25. Next, stretch one leg straight up into the air and raise your hips into a bridge again. Pulse for another count of 25. Repeat on the other side. Do three sets on each leg.